CLOVER HAY-WORM. 393 



Chrysalis light brown ; 5 m m long. The anal segment bears 

 six hooks, two dorsal, four lateral. The moths are small, brown, 

 often nearly black, with white lines and dots marking the wings. 

 They expand 10 m m. 



The moths lay the eggs in May and August. The larvse are 

 feeding in June, and probably a second brood in September. 

 The moths are easily caught in the clover fields in May and Au- 

 gust. 



By cutting the crop early we might destroy the larvae, though 

 I should fear we would not. Remedies for this and the midge 

 would be about the same. An Ichneumon parasite was found 

 preying on these by Prof. Comstock. It is Phanerotoma tibi- 

 alis. It is light brown, with a large dorsal yellow spot, and is 3.5 

 m m long. 



Insects Attacking Clover Hay. Asopia costalis, Fabr. 

 Clover Hay- worm. 



Order Lepidoptera. Family Pyralidce. 

 Riley, Mo. Ent. Rept. Vol. VI., p. 102, HI. 

 Saunders, Ont. Ent. Rep. 1880, p. 45, 111. 

 French, 111. Ent. Rep., Vol. VII.', p. 47. 



This insect works on dried clover or clover hay while in the mow 

 or stack. It is generally distributed, and scarcely a season goes 

 by that I do not receive specimens, with request for information 

 regarding the natural history and habits of the insect. This be- 

 longs to the same family as the bee moth and the meal moth. 

 Pyralis farinalis, Harr., which is often very common about barns 

 where meal is stored, and which sometimes also feeds on clover 

 hay. 



The color of the larva, Fig. 146, is dark brown, lighter beneath. 

 The intersegmental spaces are darker than the segments, which 

 makes the larvae appear to be ringed. It is 18 m m (f of an 

 inch) long. The cocoon is white, and 12 m m long. The chrys- 

 alis is yellow in color ; length of an inch. The imago, or moth, 

 50 



